System Prompt
July 2025
Overview
System Prompt is a free, open-source node-based AI workflow builder that solves the problem of repetitive AI interactions. Instead of typing the same instructions repeatedly in chat windows, users can create reusable workflows for common AI tasks.
The Problem
Many people find themselves frequently typing the same instructions into AI chat windows — like “proofread this,” “summarize that,” or “translate this” — which wastes valuable time. System Prompt eliminates this repetition by allowing users to create reusable workflows for their common AI tasks.
Key Features
- 💯 Free & Open Source: Completely free to use with MIT license
- 🎨 Infinite Canvas: Node-based workflow builder with drag-and-drop interface
- 🔄 Reusable Templates: Create and save AI templates and workflows
- 🔗 Chain Operations: Seamlessly chain multiple AI operations together
- 🔑 BYO API Keys: Works with any AI model using your own API keys
- 💻 Browser-Based: Runs entirely in your browser for privacy
- 🌓 Dark Mode: Full dark mode support
- 📱 Responsive: Works on all devices
- 💾 Local Storage: Workflows are saved automatically
- ✍️ Rich Text: Markdown support for text editing
- 🏷️ Annotations: Add documentation nodes to workflows
Node Types
- Prompt Nodes: Text inputs with labels for different data sources
- AI Nodes: Generate LLM responses based on inputs, model choice, and system prompts
- Markdown Nodes: Format and display outputs as Markdown
- Annotation Nodes: Add documentation and guidance (non-runnable)
Use Cases
Email Management
Create email response templates with specific tone and style. Just change the input email to get consistent professional responses.
Content Creation
Design once, deploy everywhere. Create social media posts for Twitter, LinkedIn, and Instagram from a single input while maintaining brand voice.
Data Processing
Build multi-step analysis workflows that chain data cleaning, analysis, and reporting operations.
Technical Stack
Built with modern web technologies including React, Next.js, TypeScript, and React Flow for the node-based interface. The application runs entirely client-side, ensuring user data privacy.
Why I Built This
The project originated from personal frustration with repetitive AI interactions. I was constantly opening new chat windows, writing the same instructions repeatedly, and pasting text. This cycle was a significant productivity drain.
What started as a simple tool for reusable prompts evolved into a comprehensive node-based workflow builder, inspired by tools like tldraw’s computer but focused on fine-grained control and production-ready AI workflows.
Impact
System Prompt has gained traction in the productivity and AI communities, with 5 stars on GitHub and growing adoption among users who want to streamline their AI workflows without compromising on privacy or control.